655804196 has 12 divisors (see below), whose sum is σ = 1159489548. Its totient is φ = 324521472.

The previous prime is 655804183. The next prime is 655804217. The reversal of 655804196 is 691408556.

It can be written as a sum of positive squares in 2 ways, for example, as 350812900 + 304991296 = 18730^2 + 17464^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844721 + ... + 845496.

It is an arithmetic number, because the mean of its divisors is an integer number (96624129).

Almost surely, 2^655804196 is an apocalyptic number.

It is an amenable number.

655804196 is a deficient number, since it is larger than the sum of its proper divisors (503685352).

655804196 is a wasteful number, since it uses less digits than its factorization.

655804196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690318 (or 1690316 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 655804196 is about 25608.6742335483. The cubic root of 655804196 is about 868.8098386676.

The spelling of 655804196 in words is "six hundred fifty-five million, eight hundred four thousand, one hundred ninety-six".